- start point for visual changes
- Resource icons now always visible.
    - Outputs grow bigger if building is selected
    - If a building is in range, its inputs will grow bigger if it corresponds to the selected building's outputs
    - Need to adjust sizing as necessary and icon texture display
- Fixed a bug with unit undo where a researcher would lose its upgrade if an event resolution was undone
- LinkUI now uses MainMenu GUI skin to surround resource icons with hexagon texture
Merge branch 'master' of https://github.com/kuvick/DOEGame